经过一个艰难的周末，车队终于收获了赛季的首次积分。
After a difficult weekend, the first points are a small reward for all our team members.
利用奇点和有限集的特征，给出了首次积分存在的某些条件。
Some conditions on the existence of the first integral are given via the properties of equilibria and limit sets.
本文主要用首次积分法构造一阶拟线性偏微分方程始值问题的解。
The fist integration is mainly used tO form the initial value solution of fist order quasi-linear partial differential equation.
正是由于这个式子，势能在构造运动方程的首次积分时将起重要作用。
It is by virtue of this fact that potential energy plays an important part in the construction of integrals of equations of motion.
本文对几类二阶非线性常微分方程，利用首次积分求得了其通积分公式。
This paper has found general integral formulas of some types of two - order nonlinear ordinary differential equations by first integral.
得到了描述球壳内表面运动的二阶非线性常微分方程，并给出了方程的首次积分。
A second_order nonlinear ordinary differential equation that describes the radial motion of the inner surface of the shell was obtained. And the first integral of the equation was then carried out.
运用首次积分法讨论了较广泛的一类常微分方程边值问题，得到了正解存在的充要条件。
The author discusses a class of general of singular boundary value problems by using the first integral method, and the necessary and sufficient condition of positive solutions was obtained.
用首次积分法，讨论了带奇异边界条件的非线性常微分方程解的存在性、不存在性和唯一性。
By the first integral method, the existence, uniqueness and nonexistence of solutions for some nonlinear ordinary differential equations with singular boundary condition are discussed.
其中定理1和2的条件采用带参数的函数，便于运用由方程首次积分构造函数的方法来获得。
The conditions of Theorems 1 and 2 formulated here adopt the Liapunov functions with parameter so that they may be more easily obtained by using Chetaev 's method.
大学本科生在第2学期或第3学期学习电路原理时首次遇到卷积积分。
Undergraduates first meet the concept of the convolution integral in their 2 nd or 3 rd term of the university.
入口截面不消耗剪切功率，然后用上界定理与曲面积分方法首次得到了用余弦模拉拔方棒时变形力的解析解。
Then with the upper-bound theorem and the surface integral an analytical solution of the drawing stress was first obtained.
本文在加热炉内钢坯加热过程数学模型的基础上，首次提出了一种以钢坯焓增过程积分值为目标函数求取加热炉最优炉温制度的方法。
In this paper, a new method to get the optimal furnace temperature of reheating furnace is brought up for the first time on the basis of the mathematical model of continuous reheating furnace.
首次给出了带盖圆锥空腔积分方程式中的有关各项角系数。
Meanwhile, several concerning angle factors of the baffled conical cavitiesare also derived in this paper.
论文首次运用精细时程积分法(PIM)对柴油机裂纹轴系扭转振动进行时域数值模拟，并对裂纹所导致时变刚度的动态性质作了分析。
The precision time step integration method (PIM) is used for the torsion vibration numerical simulation of diesel engine cracked shafting first, and the dynamic stiffness caused by crack is analyzed.
阿根廷队凭借预选赛的突出表现将捷克队挤出前三名，这也是国际足联自1993年采用积分制以来阿根廷队首次跻身三甲。
Argentina have taken over third place pushing out the Czech Republic and reaching the top three for the first time since the rankings were introduced in 1993.
阿根廷队凭借预选赛的突出表现将捷克队挤出前三名，这也是国际足联自1993年采用积分制以来阿根廷队首次跻身三甲。
Argentina have taken over third place pushing out the Czech Republic and reaching the top three for the first time since the rankings were introduced in 1993.
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